Those things go for big money, they have platinum in them. In Houston there was a thriving theft industry for the things. Come out in the morning, start your car, sounds like an old stock car. Look under, cat cut off. They would hit a whole neighborhood.

--R

On 4/4/2011 4:21 PM, E M wrote:
If you have the gear to cut open the cat, and weld it back together again,
provided the tin is in good enough shape, I believe you can buy the internal
cat material by the yard.  I don't know the price, and I'm sure it's not
"cheap", but probably cheaper than buying a new factory cat.  I knew a guy
who used to make custom systems for porsches, and he offered cats too.  He
was the one who told me the material was available by the yard, or meter as
the case may be.

Or, just pluck one from the bone yard.  The newer cats last a lot longer
than the old ones, and there is no performance benefit to gutting a modern
cat these days.

Ed
300E

On 4 April 2011 16:09, Randy Bennell<rbenn...@bennell.ca>  wrote:

Is there an O2 sensor after the cat? I hear there are units available that
will fake the signal from the O2 sensor if you clear out the cat but will
that work on an MB?

Does an MB expect the same signal from the O2 sensor that a Chevy does?
Anyone know?

Randy

On 02/04/2011 9:57 PM, Kaleb C. Striplin wrote:

I have had this annoying rattle on the 99 E430 for a little bit when at
idle either parked or in gear.  Comes and goes.  I figured it was the motor
mounts.  Replaced them today, they were shot.  Idles much more smooth but I
still have the annoying rattle.  I traced it down to something rattling
around inside the right cat converter.  It can get to rattling just right to
where it almost sounds like a rod knocking or something.  Anyway, what to do
about this?  I see rusty wants about $560 for the front exhaust section that
includes the cat.  I sure dont think I want to spend that.  Maybe I should
pull it down, cut a u shape flap in the top of it and clean  (hollow) it out
and have it welded back.  Any other ideas or a source for cheap exhaust
parts?


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